4.2. Status of LPARs
It is very easy to determine whether an LPAR is currently active or powered off by printing the status of an LPAR. The “lpar status” command can be used to display the status of a single LPAR or the status of several LPARs (or all LPARs):
$ lpar status aix\*
NAME LPAR_ID LPAR_ENV STATE PROFILE SYNC RMC PROCS PROC_UNITS MEM OS_VERSION
aix01 3 aixlinux Running standard 0 active 4 0.4 33792 AIX 7.1 7100-04-05-1720
aix02 3 aixlinux Running standard 0 inactive 1 0.2 16384 AIX 7.1 7100-04-05-1720
aix03 11 aixlinux Running standard 0 active 2 0.3 32768 AIX 7.1 7100-04-05-1720
aix04 19 aixlinux Not Activated standard 0 inactive 4 0.4 33792 AIX 7.1 7100-04-05-1720
The STATE column shows that the LPARs aix01, aix02 and aix03 are active, whereas the LPAR aix04 is powered off (Not Activated). The LPARs aix01 and aix03 have an active RMC connection to at least one of the HMCs, the two LPARs aix02 and aix04 do not have an active RMC connection. The reason for the LPAR aix04 is clear – it is powered off and therefore cannot have an active RMC connection. With LPAR aix02, however, there seems to be a problem because RMC is not active, although the LPAR is active.
In addition to the status, information on the number of processors (as well as entitlement for shared processor LPARs) and the main memory size are displayed. Finally, the operating system used and the version of the operating system are displayed. However, this information is only available if there is an active RMC connection or has existed at some point in time.